Typewriting machine



Dec. 8 1925' ,1. WALDHEIM TYPEWRITING MACHINE .Filed Nov. 5, 1521 :5sheets-sheet 1 \J 1 L 1 L In ilenfar' %m y news, 1925. 1.565.127

' J. WALDHEIM TYPEWRITING MACHINE Filed N V- 5, 1921 3 Sheets-Sheet 2//2 venfor Dec. 8 1925- 1565.127

J. WALDH EIM TYPEWRITING MACHINE Filed Nov. 5, 1921 s SheetsSheet sbwsmor: 7%W by I Affo hey.

Patented Dec. 8, 1925. r: 1"

UNITED STATES fin.. 1,565,127

PATENT OFFICE JOHN WALDI-IEIM, 0F ELIZABETH, NEW JERSEY, ASSIGNOR T0UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A GOREQBIA'LION OFDELAWARE.

, i TYPEWRJITING' MACHINE.

Application filed November 5, 1921. Serial No. 513,003.

devices for combined computingandtypewriting machines, and isillustrated as applied to the type of machine disclosed in the patent toHart, No. 1,270,411, dated June 25, 1918.

The Underwood combined typewriting and computing machine comprises anupper or typewriter portion, a computer or central portion, a base uponwhich said computer and typewriter portions are supported, and a lowerportion consisting of various driving and operating mechanisms. Thecomputer portion is nearly soundproof, since it is completely enclosed,with the exception of the openings in which operate various keys andoperating levers which according to the present improvements are closedby sounddeadening means. The noise-producing parts of the combinedcomputing and typewriting machine are mainly the upper typewriterportion and the lower portion comprising the driving and operatingmechanisms. It is a feature of this invention to provide sounddeadeningmeans in the form of closures for each of these portions. For thispurpose, the usual openings in the walls of the typewriter-frame areclosed by detachable plates and there is provided a sound-deadening hoodor crown mounted upon the upper part of the typewriter-frame to enclosethe noiseproducing parts thereof, and prevent the escape of sound at thetop of the machine. Further, a sound-deadening casing is provided forenclosing the lower portion of the machine.

A further feature is to provide said hood with a pocket at the rear inwhich operate the overhanging ends of work-sheets carried b y themachine, and to mount saidpocket so that it is supported upon saidtypewriter portion and upon the computer portion.

Another feature is the mounting of the sound-deadening casing for thelower part ,of them achine so that it abuts the lower sur face of thebase for the computer case, said base serving to close said casingcompletely at the top.

Still another feature is the supporting of said sound-deadening casingupon the stand which supports said machine.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

' Figure 1 is a side view of a combined typewriting and computingmachine with the sound-deadening means applied thereto.

Figure 2 is a side view, vertically sectioned, of the device shownin'Figure 1.

Figure 3 is a front view, partly sectioned, of the device shown inFigure 1.

The Underwood standard bookkeeping machine, to which the sound-deadeningdevices are applied, maybe of the general type disclosed in said patentto Hart, No. 1,270,- 411, and comprises a typewriter-frame mounted upona computer-case 11, abase 12 upon which said case is mounted, andvarious operating mechanisms, such as a driving motor 15 and clutch 16suspended beneath the base 12. The latter is supported by lugs orbrackets 17, fixed to the base, upon a stand 20 which may be of the typedisclosed in the patent to Hart, No. 1,063,- 878, dated June 8, 1913.The typewriterframe comprises a forward extensionv 21, in which arepositioned alphabet-keys 22 and numeral-keys 23, as in the Underwoodstandard typewriting machine. The numeralkeys and alphabet-keys operatetype-bars 24 to cause types 25 carried thereby to print against thefront side of a platen 26 forming part of a carriage 27 mounted forletterfeeding movement upon a front. rail 28 and a rear rail 29 on thetypewriter-frame 10. A space is formed between the typewriter por tionand the computer-case, in which space operate denominationaltabulator-keys 30, a subtract-key 31 and a non-compute key 32 in acomb-plate 33 which closes said space at the front.

The carriage is provided with selecting dogs 85 which, upon entering acomputing zone, are lifted by a cam-roller 36 into effective relationwith jacks 37, the travel of the carriage to the left bringing said dogsinto successive engagement with the jacks to lift each successive jack.The raising of Wvill be operated forwardly from left to right in theorder in which the numerals are typed, although the jacks are raisedsuccessively from right to left, the transposition linkagesoperatingbell-cranks ll connected witl said computing bars. hen thecomputing bars are moved forwardly,

indexing pins 12 carried by said computing bars, and corresponding tothe numerals from 1 to 9 are brought into operative position directlybeneath pin-setting bars a3: operated by the numeral-keys and normallypositioned forwardly of pins 42. The means "for operating said pinsetting bars by the numeral-keys comprises a stem sit} lixed to eachnumeral-key, said stem.

operating a rock-shalt at? through an arm -18 lived to the rock sha-i t,each pin-setting bar being operated by its own rock-shaft, and eachroek-shattbeing; operated by one of the numeraldr'eys. "Operation- .of anumeral-key, when the earriage is-in a computing zone, thus operates apin-setting bar to depress the proper pin on the denominationalthrustbar which is then in forward position. lVhen a number which is tobe run into a computing registerhas been fully typed, and the pins havebeen set on the computing bars oi proper denominations, said numbermaybe run-intothe register at the front of the cmnputer-case by operatingthe computing bars torwardly through distances correspondingto thevalues o'l 'the depressed pins.

For driving the computing bars for wardly, there is provided a generaloperator 511 which may be or the type disclosed in the patent to Hanson,No. 1,278,8l2, dated September 10, 1918, and comprises a crossbar orengaging portion 52, which may be moved forwardly to engage the lowerends of the set of depressed indexing pins, to drive the computing :barsforwardly distances corresponding to the values of the depressed pins.

The con'iputing bars 234: are provided at their :"orward ends with racks533 meshing. with pinions associated with the dial-wheels to rotate thelatter through distances proportional to the movement of thecomputing-bars; the nuineralson the peripheries of the dial-wheels beingreadable through a si 'l1t-opening 56 in a front cover-plate 57 of thecomputer-case, the front cover-plate 57 forming a continuation. of thecomb plate The general operator may be actuated by a handle 59 on arock-shat'tGO, the rockshalt having two gear-sectors 61 secured thereto,which mesh with intermediate pinions ihcreis provided a-keyGT, which maybe depressed against the tension of a return spring (not shown) tooperate a rearwa-rdlyextendinglever 68, to depress the out-er end of ahorizontally-disposed lever 69 extending inwardly from the side of themachine, toraise the inner end of said lever, said inner end beingeii'ective to actuate a trippin 70 to start the motor and render theclutch 16 effective.

The elutch-mechanism and the motorswitch-operating mechanism may be likethat disclosed in the gpatentio \Vood, No.

1,299,6-16,*dated April 8, 1919, in which the rendering of the clutcheffective reciproeates an arm or projection 71 engaging a fork 72secured to one of the guide-bars (r-loi the general operator 51. Thus,it will be seen that, when the motor makes a revolution, the generaloperator is reciprocated, or, in other words, is caused to make a cycle,the iorward stroke of the general operator beingeil'ective to drive thecomputing bars torun in the indexed number, the rearward stroke ol thegeneral operator being effective to restore the computing bars to theirnormal positions; the comp ing bars being provided for this purpose withprojections '73 which are on red by the crossbar ol the general.operator on its return stroke. The indexing pins "12 are restored bypin-restoring mechanism including a plat-'Forn'i which is acl'uable bythe general operator during the latter part of itsreturn stroke, asshown in the abovementioned Hanson patent.

\Vhen the cycle is completed. the circuit through the motor is brokenand the clutch rendered ineffective, as is disclosed in said patent toWood.

it will be understood that, when the general operator is to bereciprocated by the operating handle 59, the motor-drive may bedisconnected by lowering the projection 71 of the clutch-mechanism outof engagement with the fork 72 on the guide-bar of the general operator,as disclosed in the patent to Hart, No. 1,212,895, dated January 16, 1917. For this purpose, there is provided a clutch-device 75 in the formof a bellcrank, one arm 76 of which supports the clutch-mechanism-case,and the other end 7 7 of which is swingable to rotate said case aboutthe motor-shaft. By rotating the clutch-device, theclutch-mechanism-case isswung about the motor-shaft,'to bring theprojection 71 out of engagement with the fork.

The machine may be provided with a car- 1 riage-return key 79 which,when depressed,

typewriter portion and for the lower poi" tion comprising the variousoperating mechanisms. The middle portion or computen 'case issubstantially enclosed, and is hence a sound-proof casing. To preventthe escape of sound through the upper wall or ceiling of thecomputer-case which is provided with slots in which operate the variousupwardly-extending keys, such as the motor-starting key 67, there may beprovided a layer of sound-deadening material on said upper wall.

To deaden the sounds issuing from the typewriter portion during theoperation thereof, there is provided a sound-deadening hood or dome 91supported on the upper part of said typewriter portion. The front plate92 of the typewriter forms the front wall of the sound-deadening hood,and it is preferably lined with sound-deadening ma terial 93. To closethe side openings of the typewriter, there are provided side plates 9tsecured to said typewriter by'screws 943. The hood comprises extensions95 over which. the typewriter carriage may operate to the right andleft, said extensions being formed by plates 96 and lateral extensions'92 of front wall 92, the plates 96 being lixedupon said front wall andthe side plates 91- in any suitable manner, as by screws 96. At the rearof the typewriter portion the dome has a downward extension or pocket 97which extends outwardly as far as the lateral extensions 95, to which itis attached at its upper end at 98, said p pocket extending downwardlyto the base 12 at the rear of the computer portion to which it isattached near its lower end by means of flanges 99 fixed to saidcomputer portion.

It is obvious that, as the carriage operates over the extensions to theright and left,

the overhanging ends of work-sheets carried by said carriage will befree to operate in said pocket. The front wall, the side plates,

the lateral extensions, and the pocket form the body part of the hood,said body part being open at the top. For closing the top opening, thereis provided a cover part hinged to the rear of said pocket and extendingforwardly to said front wall and laterally to completely cover saidextensions. The cover part is preferably provided with a window 100 forpermitting the machine in the interior of the hood to be viewed.

The extreme rear wall 101 of the body part may be removable to allowaccess to the mechanism at the rear of the machine. It will be obviousthat the sound-deadening hood may be readily mounted on the machine byattaching the various parts of the hood; The rear and side walls of thepocket terminate at their. lower edges, preferably within the limits ofbase 12, the latter partially supporting said hood. \Vhen the hood hasbeen applied to the typewriter portion, there is left exposed theforward extention 21 in which are positioned the alphabet and numeralkeys, and there remain exposed also the various operating keys'andlevers, such as the tabulator, subtract, nonadd, motor-starting, andcarriage-return keys. Provision is made also of means whereby thevarious carriage-operating levers, such as line-space lever'102,carriage return fingenpiece 103' and carriage-release lever 104, may beoperated from outside of the hood, said means consisting of a'slotformed at the front between the cover part and the top of front wall 92,through which slot said levers extend. The slot maybe closed byco-operating sound-deadening cushions 105 and 106 fixed to the coverpart and to the front wall 92, respectively. The machine may be providedwith a sign 107 for indicating the state of the machine with respect toaddition or subtraction, as disclosed in the patent to Kupetz, No.1,356,072, dated October 19, 1920. To render this sign visible, thefront wall 92 of the hood may be provided with an opening or window 108.

To enclose the various operating mechanisms beneath the base 12, thereis provided a casing 110 having a removable rear wall 111 and being ofsuch width that it may be positioned between the posts of stand ,20. Thecasing is preferably supported upon stand 20 by means of lugs 112positioned beneath lugs 17 by which the computing machine is mountedupon said stand. When so mounted upon the stand, the upper edge of thecasing abuts against the under surface of the base, and, since thecasing has no cover, the base serves as a complete closure for the topof the casing. The upper edge of the casing is preferably flanged, as at11 1, and a layer of sound-deadening material 115 may be interposedbetween the casing 110 and the under surface of the base 12. To permitthe clutch device to be operated from the outside of the casing, a slot116 may be provided in said casing through which said device extends,said slot being closed by sound-deadening cushions 117 and 118 fixed onthe edges adjacent said slot. To allow ready access to the operatingmechanism within the casing, there may be provided, in addition to theremovable rear wall 111, a removable section 120.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others. Having thusdescribed my invention, I

' claim 1. Sound-deadening means for a computing machine having atypewriter-portion provided with a keyboard, and having a frameworkformed with openings in its side and rear, a computer-portion on whichthe typewriter-portion rests, a base upon which'a portion of saidcomputer-portion is supported, and various computer operating mechanismsbeneath said base and carried thereby and controlled by said keyboard,said sound-deadening means closing the open parts of the machine andcomprising plates closing said side and rear openings in said typewriterframe, a hood enclosing said typewriter-portion at the top and rear butleaving the keyboard exposed, and an open top casing enclosing saidcomputer operating mechanisms and, fitting against the lower side ofsaid base to be closed thereby.

2. In combination, a stand, an upwardlyconcave casing on said stand, afloor fitting closely the top of said casing and resting thereon, motormechanism supported by said floor and extending downwardly therefrominto said casing, a computer having a laterally-closed case resting onsaid floor and fitting it closely at the edges, a typewriter haying aframe to tit closely the top of said computer-case, and sound-deadeningmeans to enclose the typewriter with the exception of the keyboard. r

3. In combination, a combined typewriting and computing machinecomprising a typewriter, a computer having a laterallyclosed ase onwhich the typewriter rests, a. base upon which the computer-case issupported, and various operating mechanisms suspended from said base, astand, said base having lugs for connection to said stand for supportingthe machine, and sound-deadeir ing means for said machine, including acasing for said operating mechanisms iitting against the lower side ofsaid base and having lugs extending beneath said firstnamed lugs topermit corresponding lugs of both sets to be clamped to said stand bythe same means.

4. Sound-deadening means for a computing machine, said machine having atypewriter portion, a computer portion, and

various operating mechanisms beneath said computer portion, saidsound-deadening means comprising a hood for enclosing thenoise-producing parts of said typewriter portion, said hood comprising adetachable pocket at the rear in which operate the overhanging ends ofwork-sheets, said pocket being supported upon the machine and upon saidcomputer portion.

5. Sound-deadening means for a computing machine, said machine having atypewriter portion, a computer portion, and various operating mechanismsbeneath said computer portion, said sound-deadening means comprisingahood for enclosing the noise-producing parts of said typewriterportion, said hood comprising detachable sections mounted upon thetypewriter portion, and a detachable pocket at the rear in which operatethe overhanging ends of work-sheets, said pocket being supported uponthe sections mounted on the typewriter portion and upon said computerportion.

6 Sound-deadening means for a computmachine, said machine having atypewriter portion comprising a carriage, a computer portion, andvarious operating mechanisms beneath said computer portion, saidsound-deadening means comprising a hood for enclosing thenoise-producing parts of said typewriter portion, said hood comprising afront wall which is also the front wall of the typewriter portion, sidewalls for closing the sides of said typewriter portion, extensions fixedto said front wall and said side walls and over which the typewritercarriage operates to the right and left, and apocket at the rear inwhich opcrate the overhanging ends of worksheets, said pocket beingsupported upon said extensions and upon said computer portion.

7. Sound-deadening means for a computing machine, said machine having atype writer portion comprising a carriage, a computer portion, a baseupon which said portions are supported, and various operating mechanismsbeneath said base, said sound deadening means comprising a hood for enclosing the noise-producing parts of said typewriter portion, said hoodcomprising a front wall which is also the front wall of the typewriterportion, side walls for closing the sides of said typewriter portion,extensions fixed to said front wall and said side walls and over whichthe typewriter carriage operates to the right and left, and a pocket atthe rear in which operate the overhanging ends of worksheets, saidpocket being mounted upon said extensions and said computer portion andextending downwardly to said base.

8. Sound-deadening means for a combined typewriting and computingmachine comprising a computer, a typewriter on said cemputervand havinga framework formed with side and rear openings, and operatingconnections extending upwardly from the lower rear portion of thecomputer to the upper part of the typewriter, said sounddeadening meanscomprising plates closing the side and rear of the typewriter frame, ahood to enclose only the upper part of the typewriter, and having at therear a detachable work-sheet-accommodati11g pocket supported 011 thetypewriter and the computer to provide clearance at the rear of saidoperating connections for the worksheets; the framework, plates, hoodand pocket combining to form a sound-subduing air-pocket.

9. Sound-deadening means for a computing machine having atypewriter-portion, a computer-portion on which the typewriterportionrests, a base to support said computer-portion, and various operatingmechanisms beneath said base and supported thereby, said sound-deadeningmeans comprising an open-top casing for said operating mechanisms havingits upper edge abutting the lower side of said base to close the opentop.

10. In combination with a combined typewriting and computing machine,said machine comprising a framework including a typewriter section and acomputer section, said framework having openings, closure plates forsaid openings, a dome to close the upper part of the framework, achamber extending downwardly from said dome and at the rear of saidframework, a base plate to support the framework, operating mechanismdisposed beneath the base plate, and a closure element for the operatingmechanism.

11. In combination with a combined typewriting and computing machine,said machine having a typewriter frame, the latter having two closedside walls, a computer frame beneath the typewriter frame, said computerframe having closed walls, a dome supported on the typewriter frame toclose the top thereof, said typewriter frame comprising a front wallincluding a key-lever guide-plate, said dome comprising a front plateextending downwardly to the front wailof the typewriter frame, thecomputer frame comprising a ceiling, a closure extending upwardly fromsaid ceiling to said guide-plate, a base to support said machine, and achamber extending downwardly from said dome at the back of thetypewriter frame and said computer frame.

12. In combination with a combined typewriting and computing machine,said machine having a typewriter frame, the latter having two closedside walls, a computer frame beneath the typewriter frame, said computerframe having closed walls, a dome supported on the typewriter frame toclose the top thereof, said typewriter frame comprising a front wallincluding a key-lever guide-plate, said dome comprising a front plateextending downwardly to the frontwall of the typewriter frame, thecomputer. frame comprising a ceiling, a closure extending upwardly tosaid ceiling and said guide-plate, a base to support said ma chine, achamber extending downwardly from said dome at the back of thetypewriter frame and said computer frame, operating mechanism beneathsaid base, and an element to enclose said operating mechanism.

JOHN WALDHEIM.

